KR-20260066948-A - DRIVER ASSISTANCE METHOD AND DRIVER ASSISTANCE SYSTEM FOR PREVENTING FORWARD COLLISION

KR20260066948AKR 20260066948 AKR20260066948 AKR 20260066948AKR-20260066948-A

Abstract

A driver assistance method and system for preventing a front collision are disclosed. A driver assistance method for preventing a front collision according to one embodiment of the present invention comprises: a highway driving step; a data collection step for collecting sensor data and map data; a neighbor lane congestion determination step for determining whether a neighbor lane of a vehicle's driving lane is congested; an AEB control timing adjustment step for adjusting the automatic emergency braking (AEB) control timing according to the degree of congestion when the neighbor lane is congested; and a vehicle control step for controlling the vehicle according to the adjusted AEB control timing.

Inventors

남택규

Assignees

주식회사 에이치엘클레무브

Dates

Publication Date: 20260512
Application Date: 20241105

Claims (11)

In a driver assistance method for preventing front collisions, Highway driving stage; Data collection step for collecting sensor data and map data; Neighbor lane congestion determination step for determining whether the neighbor lane of the vehicle's driving lane is congested; When the above-mentioned adjacent lane is congested, an AEB control timing adjustment step that adjusts the automatic emergency braking (AEB) control timing according to the degree of congestion; and Vehicle control step for controlling the above vehicle according to the adjusted AEB control timing A driver assistance method for preventing front collisions characterized by including
In Article 1, The sensor data above includes data regarding whether there is congestion in the neighboring lane and data regarding the target vehicle for AEB control, and A driver assistance method for preventing a front collision, characterized in that the neighbor lane congestion determination step determines whether the neighbor lane is congested based on the sensor data and the map data.
In Article 1 or Article 2, A driver assistance method for preventing front collisions, characterized in that the above AEB control timing adjustment step advances the AEB control timing by a first time when the average speed of other vehicles in the neighboring lane is less than a first speed, and advances the AEB control timing by a second time when the average speed of other vehicles in the neighboring lane is greater than or equal to the first speed and less than a second speed.
In Paragraph 3, A driver assistance method for preventing forward collisions, characterized in that the above AEB control timing adjustment step maintains the existing AEB control timing when the average speed of other vehicles in the neighboring lane is greater than or equal to the second speed.
In Article 4, The above target vehicle is a vehicle entering the driving lane of the above vehicle from the above neighboring lane, and A driver assistance method for preventing a front collision, characterized in that the vehicle control step activates the AEB operation of the self vehicle when the AEB operation conditions between the self vehicle and the target vehicle are satisfied according to the adjusted AEB control timing.
In a driver assistance system for preventing front collisions, A sensor unit that provides sensor data detecting the surroundings of a vehicle traveling on a highway; A map information providing unit that provides map data of the surroundings of the above-mentioned vehicle; and A control unit that adjusts the timing of automatic emergency braking (AEB) control of the vehicle based on sensor data from the sensor unit and map data from the map information providing unit. Includes, A driver assistance system for preventing forward collisions, characterized in that the above-described control unit adjusts the timing of automatic emergency braking (AEB) control according to the degree of congestion when an adjacent lane of the vehicle's driving lane is congested, and controls the vehicle according to the adjusted AEB control timing.
In Article 6, The above control unit includes at least one processor, and A driver assistance system for preventing forward collisions, characterized in that at least one processor calculates an early timing for the AEB control point according to the degree of congestion in the neighboring lane.
In Article 7, A driver assistance system for preventing front collisions, characterized in that at least one processor calculates an advance time of the AEB control time, such that if the average speed of other vehicles in the neighboring lane is less than a first speed, the AEB control time is advanced by a first time, and if the average speed of other vehicles in the neighboring lane is greater than or equal to the first speed and less than a second speed, the AEB control time is advanced by a second time.
In any one of paragraphs 6 through 8, The sensor data above includes data regarding whether there is congestion in the neighboring lane and data regarding the target vehicle for AEB control, and A driver assistance system for preventing front collisions, characterized in that the control unit determines whether there is congestion in the neighboring lane based on sensor data from the sensor unit and map data from the map information providing unit.
In Article 9, The above target vehicle is a vehicle entering the driving lane of the above vehicle from the above neighboring lane, and The above control unit is connected to a warning device for warning the driver of the vehicle, and A driver assistance system for preventing front collisions, characterized in that the above-described control unit controls the warning device to provide a warning to the driver regarding AEB when it is determined that the target vehicle has entered within the AEB warning time according to the adjusted AEB control time.
In Article 10, The above control unit is connected to a braking device for controlling the braking of the above vehicle, and A driver assistance system for preventing front collisions, characterized in that the control unit controls the braking device to perform braking control according to AEB when it is determined that the target vehicle has entered within the AEB braking control timing according to the adjusted AEB control timing.

Description

Driver Assistance Method and System for Preventing Forward Collision The present invention relates to a driver assistance method and system for preventing frontal collisions. More specifically, it relates to a driver assistance method and system for preventing frontal collisions to effectively prevent frontal collisions in situations of high uncertainty due to congestion in adjacent lanes. In vehicles, a Driver Assistance System provides support to the driver while driving inside the vehicle for the driver's convenience. For example, Autonomous Emergency Braking Systems (AEB), which automatically apply the brakes when there is a risk of collision to prevent rear-end collisions with the vehicle ahead, have been widely adopted. Meanwhile, even when an automatic emergency braking system is provided, the potential risks may differ between normal driving and congested situations when a vehicle is traveling on a highway (expressway). For example, when there are highway entrances or exits, the lanes on the entrance/exit side are often congested, and for vehicles traveling in adjacent lanes, there are many cases where the automatic emergency braking system fails to operate properly or operates late, making it impossible to avoid the risk of collision due to other vehicles suddenly entering from the congested lanes on the entrance/exit side. Therefore, there is a need for a driver assistance method and system to effectively prevent a frontal collision by adjusting the control sensitivity of the Automatic Emergency Braking (AEB) system when a vehicle is traveling on a highway and an adjacent lane is congested. FIG. 1 is a control flowchart illustrating a driver assistance method for preventing a front collision according to one embodiment of the present invention. FIG. 2 is a diagram showing a method of using sensor data and map data in controlling the timing of AEB control according to one embodiment of the present invention. FIG. 3 is a diagram showing a highway driving situation to explain a driver assistance method for preventing a front collision according to one embodiment of the present invention. FIG. 4 is a control flowchart showing a specific embodiment of the step of adjusting the timing of AEB control according to the degree of congestion in a driver assistance method for preventing a front collision according to an embodiment of the present invention. FIG. 5 is a control configuration diagram schematically showing the configuration of a driver assistance system for preventing front collisions according to an embodiment of the present invention. Embodiments of the present invention are described below with reference to the attached drawings to enable those skilled in the art to easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals. Throughout this specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected," but also cases where they are "electrically connected" or "indirectly connected" with other elements interposed between them. Throughout the entire specification, when a component is described as being located "on," "on top," "on top," "under," "on bottom," or "on bottom" of another component, this includes not only cases where the component is in contact with the other component but also cases where another component exists between the two components. Throughout this specification, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. The present invention relates to a driver assistance method and system for preventing a frontal collision to cope with a sudden collision situation with a target vehicle entering from an adjacent lane due to congestion in an adjacent lane when the vehicle is traveling on a highway. FIG. 1 is a control flowchart illustrating a driver assistance method for preventing a front collision according to one embodiment of the present invention. Referring to FIG. 1 of the present invention, a driver assistance method (S100) for preventing a forward collision according to one embodiment of the present invention may include a highway driving step (S110) in which a vehicle is driving on a highway. The highway here may include a road exclusively for motor vehicles. In addition, a driver assistance method (S100) for preventing a front collision according to one embodiment of the present invention may include a data collection step (S120) for collecting sensor data and map data. The sensor data described herein may be data collected from a fron